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Full Retirement Age Calculator
Enter your date of birth to find your Social Security full retirement age and the exact month you reach it, the first month you can claim at 62 and how much that cuts your benefit, your Medicare start date and other retirement milestones with countdowns.
Last updated:
Social Security counts you as reaching an age the day before your birthday.
Enter your values to see the result.
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How to use the Full Retirement Age Calculator
- Enter your date of birth.
- Read your full retirement age and the month full benefits begin.
- Check the earliest claim month and the percentage your benefit would be cut at 62.
- Note your Medicare date and the 7-month enrollment window around it.
- Use the milestone table to see every key retirement date and how many days are left.
Full retirement age by year of birth
| Birth year | Full retirement age | Reduction at 62 | Months early at 62 |
|---|---|---|---|
| 1943–1954 | 66 | 25% | 48 |
| 1955 | 66 and 2 months | 25.83% | 50 |
| 1956 | 66 and 4 months | 26.67% | 52 |
| 1957 | 66 and 6 months | 27.50% | 54 |
| 1958 | 66 and 8 months | 28.33% | 56 |
| 1959 | 66 and 10 months | 29.17% | 58 |
| 1960 and later | 67 | 30% | 60 |
Born on January 1? Use the row for the previous year. Source: Social Security Administration retirement age rules.
How the dates are worked out
- Attaining an age: Social Security treats you as reaching an age on the day before your birthday.
- Full retirement age date = that day + your full retirement age in months. Full benefits are payable from that month.
- Earliest claim: you must be 62 throughout a month, so most people start the month after their 62nd birthday. Because people born mid-month cannot be paid for their birthday month, their real maximum reduction is slightly smaller than the table (for example 29.58% instead of 30%).
- Reduction formula: 5/9% per month for the first 36 months early, then 5/12% per month. Spousal benefits: 25/36% per month for 36 months, then 5/12%.
- Medicare is tied to age 65, not to Social Security's full retirement age.
Other retirement ages to know
| Age | What happens |
|---|---|
| 50 | Catch-up contributions allowed in 401(k)s and IRAs |
| 55 | Rule of 55: penalty-free withdrawals from your current employer's 401(k) after leaving the job |
| 59½ | 10% early withdrawal penalty no longer applies to IRAs and 401(k)s |
| 62 | Earliest Social Security retirement benefit (reduced) |
| 65 | Medicare eligibility |
| 66–67 | Full retirement age; the earnings test stops |
| 70 | Delayed retirement credits stop; largest monthly benefit |
| 73 / 75 | Required minimum distributions begin (born 1951–1959 / 1960 or later) |
Frequently asked questions
What is my full retirement age?
It depends on your birth year. It is 66 for people born 1943 to 1954, rises by 2 months a year for 1955 to 1959 (66 and 2 months up to 66 and 10 months), and is 67 for anyone born in 1960 or later.
Why does my birthday matter if I was born on January 1?
Social Security says you reach an age the day before your birthday. If you were born on January 1, you reach each age on December 31 of the previous year, so the full retirement age for the previous birth year applies to you.
When can I first get Social Security retirement benefits?
At 62, but you must be 62 for the entire month. If you were born on the 1st or 2nd of a month you can be paid for your birthday month; otherwise benefits start the month after you turn 62.
How much is my benefit reduced if I claim at 62?
The reduction is 5/9 of 1% for each of the first 36 months before full retirement age plus 5/12 of 1% for each additional month. With a full retirement age of 67 that is 30%. A spousal benefit is cut more, 35% at 62.
When am I eligible for Medicare?
Medicare eligibility starts at 65, no matter what your Social Security full retirement age is. Coverage can begin the first day of the month you turn 65 (the month before if your birthday is on the 1st). The initial enrollment period runs 3 months before through 3 months after that month.
Is it worth waiting past full retirement age?
Each month you wait after full retirement age adds 2/3 of 1% (8% a year), until 70. Whether that pays off depends on how long you live; the Social Security break-even calculator shows the age at which waiting comes out ahead.
Is full retirement age the same as the RMD age?
No. Required minimum distributions from IRAs and 401(k)s follow tax rules: under SECURE 2.0 they start at 73 for people born 1951 to 1959 and at 75 for those born in 1960 or later.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.
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